summaryrefslogtreecommitdiffstats
path: root/lib/chardet/__init__.py
diff options
context:
space:
mode:
authorxiubuzhe <xiubuzhe@sina.com>2023-10-08 20:59:00 +0800
committerxiubuzhe <xiubuzhe@sina.com>2023-10-08 20:59:00 +0800
commit1dac2263372df2b85db5d029a45721fa158a5c9d (patch)
tree0365f9c57df04178a726d7584ca6a6b955a7ce6a /lib/chardet/__init__.py
parentb494be364bb39e1de128ada7dc576a729d99907e (diff)
downloadsunhpc-1dac2263372df2b85db5d029a45721fa158a5c9d.tar.gz
sunhpc-1dac2263372df2b85db5d029a45721fa158a5c9d.tar.bz2
sunhpc-1dac2263372df2b85db5d029a45721fa158a5c9d.zip
first add files
Diffstat (limited to 'lib/chardet/__init__.py')
-rw-r--r--lib/chardet/__init__.py93
1 files changed, 93 insertions, 0 deletions
diff --git a/lib/chardet/__init__.py b/lib/chardet/__init__.py
new file mode 100644
index 0000000..e91ad61
--- /dev/null
+++ b/lib/chardet/__init__.py
@@ -0,0 +1,93 @@
+######################## BEGIN LICENSE BLOCK ########################
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301 USA
+######################### END LICENSE BLOCK #########################
+
+from .enums import InputState
+from .universaldetector import UniversalDetector
+from .version import VERSION, __version__
+
+__all__ = ["UniversalDetector", "detect", "detect_all", "__version__", "VERSION"]
+
+
+def detect(byte_str):
+ """
+ Detect the encoding of the given byte string.
+
+ :param byte_str: The byte sequence to examine.
+ :type byte_str: ``bytes`` or ``bytearray``
+ """
+ if not isinstance(byte_str, bytearray):
+ if not isinstance(byte_str, bytes):
+ raise TypeError(
+ f"Expected object of type bytes or bytearray, got: {type(byte_str)}"
+ )
+ byte_str = bytearray(byte_str)
+ detector = UniversalDetector()
+ detector.feed(byte_str)
+ return detector.close()
+
+
+def detect_all(byte_str, ignore_threshold=False):
+ """
+ Detect all the possible encodings of the given byte string.
+
+ :param byte_str: The byte sequence to examine.
+ :type byte_str: ``bytes`` or ``bytearray``
+ :param ignore_threshold: Include encodings that are below
+ ``UniversalDetector.MINIMUM_THRESHOLD``
+ in results.
+ :type ignore_threshold: ``bool``
+ """
+ if not isinstance(byte_str, bytearray):
+ if not isinstance(byte_str, bytes):
+ raise TypeError(
+ f"Expected object of type bytes or bytearray, got: {type(byte_str)}"
+ )
+ byte_str = bytearray(byte_str)
+
+ detector = UniversalDetector()
+ detector.feed(byte_str)
+ detector.close()
+
+ if detector.input_state == InputState.HIGH_BYTE:
+ results = []
+ probers = []
+ for prober in detector.charset_probers:
+ if hasattr(prober, "probers"):
+ probers.extend(p for p in prober.probers)
+ else:
+ probers.append(prober)
+ for prober in probers:
+ if ignore_threshold or prober.get_confidence() > detector.MINIMUM_THRESHOLD:
+ charset_name = prober.charset_name or ""
+ lower_charset_name = charset_name.lower()
+ # Use Windows encoding name instead of ISO-8859 if we saw any
+ # extra Windows-specific bytes
+ if lower_charset_name.startswith("iso-8859") and detector.has_win_bytes:
+ charset_name = detector.ISO_WIN_MAP.get(
+ lower_charset_name, charset_name
+ )
+ results.append(
+ {
+ "encoding": charset_name,
+ "confidence": prober.get_confidence(),
+ "language": prober.language,
+ }
+ )
+ if len(results) > 0:
+ return sorted(results, key=lambda result: -result["confidence"])
+
+ return [detector.result]